Home / 40,465,318.88-55,842,100.66-21,880,414.54

Finding the Fourth Proportional to 40,465,318.88, 55,842,100.66 and 21,880,414.54

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Solution

The fourth proportional to 40,465,318.88, 55,842,100.66 and 21,880,414.54 is: 30,194,950.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,465,318.88 : 55,842,100.66 = 21,880,414.54 : x
  2. Step 2: Convert to fraction form
    40,465,318.88/55,842,100.66 = 21,880,414.54/x
  3. Step 3: Cross multiply
    40,465,318.88x = 55,842,100.66 × 21,880,414.54
  4. Step 4: Simplify right side
    40,465,318.88x = 1,221,848,311,217,656.75
  5. Step 5: Solve for x
    x = 1,221,848,311,217,656.75/40,465,318.88
  6. Step 6: Final answer
    x = 30,194,950.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.